[INFO] fetching crate adafruit-7segment 0.1.0...
[INFO] testing adafruit-7segment-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate adafruit-7segment 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate adafruit-7segment 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate adafruit-7segment 0.1.0
[INFO] finished tweaking crates.io crate adafruit-7segment 0.1.0
[INFO] tweaked toml for crates.io crate adafruit-7segment 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 15c541483cca627682f0d6677559265bd279c80e9311a5d3723b6f5bdf37618d
[INFO] running `Command { std: "docker" "start" "-a" "15c541483cca627682f0d6677559265bd279c80e9311a5d3723b6f5bdf37618d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15c541483cca627682f0d6677559265bd279c80e9311a5d3723b6f5bdf37618d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15c541483cca627682f0d6677559265bd279c80e9311a5d3723b6f5bdf37618d", kill_on_drop: false }`
[INFO] [stdout] 15c541483cca627682f0d6677559265bd279c80e9311a5d3723b6f5bdf37618d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d9c787554cd353f62795a437576118c670f4e7f7e9709ed410e2b186a0f9fd21
[INFO] running `Command { std: "docker" "start" "-a" "d9c787554cd353f62795a437576118c670f4e7f7e9709ed410e2b186a0f9fd21", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ascii v1.0.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.4
[INFO] [stderr]    Compiling ht16k33 v0.4.0
[INFO] [stderr]    Compiling adafruit-7segment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "d9c787554cd353f62795a437576118c670f4e7f7e9709ed410e2b186a0f9fd21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9c787554cd353f62795a437576118c670f4e7f7e9709ed410e2b186a0f9fd21", kill_on_drop: false }`
[INFO] [stdout] d9c787554cd353f62795a437576118c670f4e7f7e9709ed410e2b186a0f9fd21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8e963b919fa9567596dbc2a816f825d174ee51f739bbf6204c672eab0d63a8e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a8e963b919fa9567596dbc2a816f825d174ee51f739bbf6204c672eab0d63a8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling semver-parser v0.9.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling embedded-hal-mock v0.4.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling version-sync v0.9.1
[INFO] [stderr]    Compiling adafruit-7segment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.06s
[INFO] running `Command { std: "docker" "inspect" "a8e963b919fa9567596dbc2a816f825d174ee51f739bbf6204c672eab0d63a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8e963b919fa9567596dbc2a816f825d174ee51f739bbf6204c672eab0d63a8e", kill_on_drop: false }`
[INFO] [stdout] a8e963b919fa9567596dbc2a816f825d174ee51f739bbf6204c672eab0d63a8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 67acbb57deebbf6cdb4d06a935e1647c7d0217a04fe8c2f8c6d62c64352034a1
[INFO] running `Command { std: "docker" "start" "-a" "67acbb57deebbf6cdb4d06a935e1647c7d0217a04fe8c2f8c6d62c64352034a1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/adafruit_7segment-a61f5b37abbfdf9a
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::update_buffer_with_char ... ok
[INFO] [stdout] test tests::update_buffer_with_float ... ok
[INFO] [stdout] test tests::update_buffer_with_dot ... ok
[INFO] [stdout] test tests::update_buffer_with_colon ... ok
[INFO] [stdout] test tests::update_buffer_with_digit ... ok
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/version_numbers-fb271f5571fc66f0
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_readme_deps ... ok
[INFO] [stdout] test test_readme_mentions_version ... ok
[INFO] [stdout] test test_html_root_url ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests adafruit-7segment
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - (line 43) ... ignored
[INFO] [stdout] test src/lib.rs - HT16K33<I2C>::update_buffer_with_dot (line 298) ... ok
[INFO] [stdout] test src/lib.rs - (line 114) ... ok
[INFO] [stdout] test src/lib.rs - HT16K33<I2C>::update_buffer_with_digit (line 267) ... ok
[INFO] [stdout] test src/lib.rs - HT16K33<I2C>::update_buffer_with_float (line 412) ... ok
[INFO] [stdout] test src/lib.rs - HT16K33<I2C>::update_buffer_with_colon (line 332) ... ok
[INFO] [stdout] test src/lib.rs - HT16K33<I2C>::update_buffer_with_char (line 361) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "67acbb57deebbf6cdb4d06a935e1647c7d0217a04fe8c2f8c6d62c64352034a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67acbb57deebbf6cdb4d06a935e1647c7d0217a04fe8c2f8c6d62c64352034a1", kill_on_drop: false }`
[INFO] [stdout] 67acbb57deebbf6cdb4d06a935e1647c7d0217a04fe8c2f8c6d62c64352034a1